SystemShield #10 Universal Machine Screw Washer

#10 Universal Machine Screw Washer

Short Description

Compact #10 machine screw washer for machine-fastened grounding, bonding, cabinet, enclosure, and equipment assemblies. Current matching listings for the #10 machine-screw washer class show about 0.199 to 0.209 in inside diameter, 0.433 to 0.443 in outside diameter, and 0.028 to 0.036 in thickness, with steel construction and zinc-plated finish in common supply variants.

Product Overview

The SystemShield #10 Universal Machine Screw Washer is the active compact flat-washer class used in the current SystemShield hardware structure for #10 machine-screw stack-ups. In technical terms, the dimensional class aligns with what suppliers commonly call a #10 machine screw flat washer or machine screw style flat washer. The retained SystemShield name is #10 Universal Machine Screw Washer, but the dimensional identity is the compact #10 machine-screw washer class.

Current supplier listings for this washer class consistently show an inside diameter of 0.199 to 0.209 in, outside diameter of 0.433 to 0.443 in, and thickness of 0.028 to 0.036 in. Those values repeat across multiple sources, which makes the dimensional class stable enough to lock into the catalog.

This washer class is intentionally more compact than the older #10 USS flat washer pattern. Current #10 USS listings show about 9/16 in outside diameter, 1/4 in inside diameter, and 0.036 to 0.065 in thickness, which is materially larger than the compact machine-screw washer class. That distinction is the reason this washer class now replaces the older USS washer in your current SystemShield structure.

This product should therefore be treated as a compact #10 machine-screw washer entry used for controlled hardware stack-ups where tighter OD, tighter clearance, and standard flat-washer load distribution are preferred over the broader USS pattern.

Key Features

• Sized for #10 machine-screw hardware
• Compact machine screw washer dimensional class
• About 0.199 to 0.209 in inside diameter on matching listings
• About 0.433 to 0.443 in outside diameter on matching listings
• About 0.028 to 0.036 in thickness on matching listings
• Commonly supplied as steel with zinc-plated finish
• Smaller OD than the older #10 USS flat washer pattern
• Suitable for use with 10-32 and 10-24 machine-screw systems

Technical Specifications